Adhesive material is applied to a surface of a metallic core layer. The adhesive material is removed from a conductive region of the metallic core layer. A metallic contact is provided over the conductive region of the metallic core layer. The metallic core layer is laminated to an imprinted buildup layer, the buildup layer having a dielectric region and a conductive region, wherein a nonconductive region of the metallic core layer is bonded to the dielectric region of the buildup layer and the conductive region of the metallic core layer is bonded to the conductive region of the imprinted-buildup layer.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An apparatus comprising: a core layer having a non-conductive region and a conductive region, wherein the non-conductive region was formed by anodizing; a buildup layer having a dielectric region and a conductive region, wherein the buildup layer includes a pattern imprinted therein and/or thereon and metalized; an adhesive layer, wherein the adhesive layer is used to adhere the core layer to the buildup layer; and a metallic contact, wherein the metallic contact provides electrical continuity between the conductive region of the core layer and the conductive region of the buildup layer.
2. The apparatus of claim 1 , wherein an integrated circuit package is formed having four circuit layers.
3. The apparatus of claim 1 , wherein solder paste is used to make the metallic contact.
4. The apparatus of claim 3 , wherein the solder paste is screen-printed.
5. The apparatus of claim 1 , wherein a solder ball is used to make the metallic contact.
6. The apparatus of claim 1 , wherein a pre-stressed metallic contact is used to make the metallic contact.
7. The apparatus of claim 1 , wherein a liquid crystal polymer layer (LCP) is used for the adhesive material.
8. The apparatus of claim 1 , wherein the dielectric region of the core layer is a liquid crystal polymer.
9. The apparatus of claim 1 , wherein the metallic region of the core layer is copper.
10. The apparatus of claim 1 , wherein the conductive region of the core layer is aluminum (Al).
11. The apparatus of claim 1 , wherein the non-conductive region of the core layer is Aluminum oxide (AlOx).
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 11, 2004
July 17, 2007
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